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Gold alloy smelting method

A smelting method and gold technology, applied in the field of gold alloy smelting, can solve the problems of low accuracy and high loss rate of trace impurity elements, and achieve the effect of ensuring accuracy

Active Publication Date: 2021-04-09
山东黄金冶炼有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide a gold alloy smelting method. First, solve the problems of high loss rate and low accuracy of adding trace impurity elements; second, remove impurities on the surface to make the surface of the smelted alloy brighter

Method used

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Examples

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Embodiment Construction

[0023] The present invention will be further described below in conjunction with specific examples.

[0024] This embodiment is illustrated by taking the preparation of 10 g of a gold sample containing 1% antimony as an example. Among them, the main content of gold used for smelting is 99.99%, which is a flake element; the main content of antimony is 99.99%, which is a powder element.

[0025] 1. Preparation of packaged granules.

[0026] The gold is processed into thin slices with a certain width, and its thickness is 0.01~0.1mm. After annealing, it is cut into a certain size and folded into a funnel shape with an open top. Before use, use a balance to weigh its weight and deduct it from the total amount of gold added, pour the weighed powdered antimony element to be doped into it, then seal the top of the funnel, press it tightly, pack it tightly, and discharge the air to form Wrap the grains. The composite particles tightly wrap the doping elements to form an isolation l...

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Abstract

The invention discloses a gold alloy smelting method. The method comprises the following steps of 1, preparing wrapping granules, processing gold into sheets, conducting annealing treatment, then shearing into sheets, tightly wrapping to-be-doped elements with the sheet-shaped gold, and exhausting air to form the wrapping granules; 2, adding and smelting the granules, namely putting the wrapping granules at the edge of the molten gold, sucking in the liquid gold, completely wrapping the granules, and melting the granules by virtue of the gold temperature. According to the method, the problems of high trace impurity element addition loss rate and low accuracy are solved. Through surface impurity removal, the surface of the smelted alloy is smoother.

Description

technical field [0001] The invention relates to a method for smelting a gold alloy. Background technique [0002] As a precious metal, gold is widely used in jewelry manufacturing, aerospace, precision electronics and other fields. In order to meet the special requirements for the performance of gold materials in different fields, it is sometimes necessary to add a certain amount of other elements to gold to form a gold alloy. With the change of the type and content of the added elements, the electrochemical properties of gold alloys also have significant differences. Usually, gold alloys are prepared by smelting, but under high temperature conditions, the added elements are prone to oxidation reactions, and there are problems such as high element addition loss rate and inaccurate addition amount. In addition, due to the imperfect protection measures during the addition process, the added elements will also form an oxide layer on the gold surface, which will affect the app...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C1/02C22C5/02
CPCC22C1/02C22C5/02
Inventor 单召勇杨海江刘旭坤朱幸福朱宗波卞小冬
Owner 山东黄金冶炼有限公司